催化学报 ›› 2015, Vol. 36 ›› Issue (4): 588-594.DOI: 10.1016/S1872-2067(14)60292-8

• 论文 • 上一篇    下一篇

MOCVD法制备Pd@ZIF-8催化剂及其催化Suzuki反应性能

张明明, 高雅, 李闯, 梁长海   

  1. 大连理工大学化工学院先进材料和催化工程实验室, 辽宁大连 116024
  • 收稿日期:2014-11-10 修回日期:2014-12-29 出版日期:2015-03-23 发布日期:2015-03-23
  • 通讯作者: Changhai Liang
  • 基金资助:

    国家自然科学基金(21073023); 中央高校基本科研业务费专项资金(DUT13RC(3)41); 中国博士后科学基金(2013M541220).

Chemical vapor deposition of Pd(C3H5)(C5H5) for the synthesis of reusable Pd@ZIF-8 catalysts for the Suzuki coupling reaction

Mingming Zhang, Ya Gao, Chuang Li, Changhai Liang   

  1. Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2014-11-10 Revised:2014-12-29 Online:2015-03-23 Published:2015-03-23
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21073023), the Fundamental Research Funds for the Central Universities (DUT13RC(3)41), and the Postdoctoral Science Foundation of China (2013M541220).

摘要:

以金属有机骨架化合物ZIF-8为载体, Pd(C3H5)(C5H5)为金属有机前体, 采用金属有机气相沉积方法在室温下制备了Pd@ZIF-8催化剂. Pd纳米粒子在ZIF-8载体上均匀分布, 粒子尺寸约为1.5-3.5 nm. Pd@ZIF-8在温和条件下对多种卤代芳烃和苯硼酸的偶联反应均具有良好的活性. ZIF-8优异的化学稳定性不仅保证了其在制备过程中结构的完整, 而且赋予了催化剂优异的循环使用性能. 反应后Pd@ZIF-8材料的晶体结构、孔结构以及粒子分布均未发生明显的变化.

关键词: 钯, ZIF-8, 金属有机气相沉积, Suzuki偶联反应

Abstract:

A zeolite-imidazolium-framework-supported Pd-based heterogeneous catalyst (Pd@ZIF-8) was prepared by a metal-organic chemical vapor deposition method under mild conditions using Pd(C3H5)(C5H5) as the Pd precursor. N2 adsorption and pore size distribution data showed that ZIF-8 and Pd@ZIF-8 both possessed high surface areas. Transmission electron microscopy images showed that Pd nanoparticles with sizes of about 1.5-3.5 nm were homogeneously dispersed on the ZIF-8 support in Pd@ZIF-8. The Pd@ZIF-8 catalyst showed good activity in Suzuki coupling reactions with several different kinds of aryl halides. It could be reused at least six times without dramatic loss of activity or decomposition of the ZIF-8 structure.

Key words: Palladium, ZIF-8, Metal-organic chemical vapor deposition, Suzuki coupling reaction